Removing deprecation code for 3.16

[danielsoro]

Continuation of #43416

This code should be applied to the 3.16 version when it is expected to be removed.

I'll be on vacation in the next 20 days. I could see the feedback review when I get back if it is not closed yet! 🙏🏻

[gsmet]

Converting to draft as I need to discuss with @brunobat when we actually want to drop the feature.

[github-actions]

🎊 PR Preview a4b05f7 has been successfully built and deployed to https://quarkus-pr-main-43542-preview.surge.sh/version/main/guides/

• Images of blog posts older than 3 months are not available.
• Newsletters older than 3 months are not available.

[quarkus-bot]

Status for workflow Quarkus Documentation CI

This is the status report for running Quarkus Documentation CI on commit ec57a10.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

Warning

There are other workflow runs running, you probably need to wait for their status before merging.

[quarkus-bot]

Status for workflow Quarkus CI

This is the status report for running Quarkus CI on commit ec57a10.

✅ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

You can consult the Develocity build scans.